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Highly effective and reproducible surface-enhanced Raman scattering substrates based on Ag pyramidal arrays

Yandong Wang1, Nan Lu1(), Wentao Wang1, Lingxiao Liu1, Lei Feng1, Zhoufang Zeng1, Haibo Li1, Weiqing Xu1, Zijian Wu2, Wei Hu2, Yanqing Lu2, and Lifeng Chi1,3

1 State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
2 National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
3 Physikalisches Institut and Center for Nanotechnology (CeNTech), Westfälische Wilhelms-Universität, D-48149 M邦nster, Germany

DOI 10.1007/s12274-013-0291-0

Nano Research 2013, 6(3): 159每166

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Excellent surface-enhanced Raman scattering (SERS) performance with high homogeneity (for a single substrate) and reproducibility (for different substrates) has been achieved using Ag pyramidal arrays obtained by using inverted pyramidal Si pits as a template. The close-packed Ag pyramids exhibit a high average enhancement factor of 2.84 ℅ 107 with relative standard deviation lower than 8.78% both across a single substrate and different batches of substrates.


Branched Co3O4/Fe2O3 nanowires as high capacity lithium-ion battery anodes

Hao Wu, Ming Xu, Yongcheng Wang, and Gengfeng Zheng (*)

Laboratory of Advanced Materials, Department of Chemistry, Fudan University, Shanghai 200433, China

DOI 10.1007/s12274-013-0292-z

Nano Research 2013, 6(3): 167每173

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A novel Co3O4/汐-Fe2O3 branched nanowire heterostructure has been hydrothermally grown on Ti substrates, and can serve as lithiumion battery anodes with high Li+ storage capacity and stability.


Scalable preparation of porous silicon nanoparticles and their application for lithium-ion battery anodes

Mingyuan Ge1, Jiepeng Rong1, Xin Fang1, Anyi Zhang1, Yunhao Lu2, and Chongwu Zhou1,3 ()

1 Department of Chemical Engineering and Materials Science, University of Southern California, 3710 McClintock Ave, Los Angeles, CA 90089, USA
2 Department of Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
3 Department of Electrical Engineering, University of Southern California, 3710 McClintock Ave, Los Angeles, CA 90089, USA

DOI 10.1007/s12274-013-0293-y

Nano Research 2013, 6(3): 174每181

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Porous silicon nanoparticles have been produced as a new kind of silicon nanostructure in large quantity in a scalable and cost-efficient way. The porous silicon nanoparticles have been successfully used as high performance lithium-ion battery anodes, with capacity around 1400 mA•h/g and 1000 mA•h/g at current rates of 1 A/g and 2 A/g.


Coaxial Si/anodic titanium oxide/Si nanotube arrays for lithium-ion battery anodes

Jiepeng Rong1,∫, Xin Fang1,∫, Mingyuan Ge1, Haitian Chen2, Jing Xu1, and Chongwu Zhou2 ()

1 Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, California 90089, USA
2 Ming Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089, USA
These authors contributed equally to this paper.

DOI 10.1007/s12274-013-0294-x

Nano Research 2013, 6(3): 182每190

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We report a coaxial silicon/anodic titanium oxide/silicon (Si每ATO每Si) nanotube array structure grown on a titanium substrate demonstrating excellent electrochemical cyclability. This coaxial structure shows a capacity above 1,500 mAh/g after 100 cycles, with less than 0.05% decay per cycle.


Fast and reliable identification of atomically thin layers of TaSe2 crystals

Andres Castellanos-Gomez1 (), Efr谷n Navarro-Moratalla2, Guillermo Mokry3, Jorge Quereda3, Elena Pinilla-Cienfuegos2, Nicol芍s Agraït3,4, Herre S. J. van der Zant1, Eugenio Coronado2, Gary A. Steele1, and Gabino Rubio-Bollinger3 ()

1 Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
2 Instituto Ciencia Molecular (ICMol), Univ. Valencia, C/Catedr芍tico Jos谷 Beltr芍n 2, E-46980, Paterna, Spain
3 Departamento de F赤sica de la Materia Condensada (C每III). Universidad Aut車noma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
4 Instituto Madrileño de Estudios Avanzados en Nanociencia IMDEA-Nanociencia, E-28049 Madrid, Spain

DOI 10.1007/s12274-013-0295-9

Nano Research 2013, 6(3): 191每199

Address correspondence to Andres Castellanos-Gomez,; Gabino Rubio-Bollinger,

Atomically thin crystals of TaSe2 have been fabricated by mechanical exfoliation of bulk crystals. A systematic study of their optical contrast and Raman spectra provide a fast, reliable and non-destructive way to identify these ultrathin two-dimensional crystals. Moreover, the optimal substrate conditions to identify atomically TaSe2 layers have been calculated.


An innovative way of etching MoS2: Characterization and mechanistic investigation

Yuan Huang1,2,3,∫, Jing Wu2,3,∫, Xiangfan Xu2,3, Yuda Ho2,3, Guangxin Ni2,3, Qiang Zou1, Gavin Kok Wai Koon2,3, Weijie Zhao2,3,4, A. H. Castro Neto2,3,6, Goki Eda2,3,4, Chengmin Shen1, and Barbaros Özyilmaz2,3,5,6 ()

1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 China
2 Department of Physics, 2 Science Drive 3, National University of Singapore, 117542 Singapore
3 Graphene Research Centre, 6 Science Drive 2, National University of Singapore, 117542 Singapore
4 Department of Chemistry, National University of Singapore, 6 Science Drive 2, 117546 Singapore
5 Nanocore, 4 Engineering Drive 3, National University of Singapore, 117576 Singapore
6 NUS Graduate School for Integrative Sciences and Engineering (NGS), Centre for Life Sciences (CeLS), 28 Medical Drive, 117456 Singapore
These two authors made an equal contribution to the work.

DOI 10.1007/s12274-013-0296-8

Nano Research 2013, 6(3): 200每207

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An innovative way of etching MoS2 crystals by using XeF2 gas has been systematically studied, and the etching mechanism is clearly shown.


High-strength composite yarns derived from oxygen plasma modified super-aligned carbon nanotube arrays

Haoming Wei1,2, Yang Wei1 (), Yang Wu1, Liang Liu1, Shoushan Fan1,2, and Kaili Jiang1 ()

1 Department of Physics & Tsinghua每Foxconn Nanotechnology Research Center, Tsinghua University, Beijing 100084, China
2 Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

DOI 10.1007/s12274-013-0297-7

Nano Research 2013, 6(3): 208每215

Address correspondence to Yang Wei,; Kaili Jiang,

O2 plasma has been employed to modify super-aligned carbon nanotube (CNT) arrays. The treatment not only removes the random layer of curved CNTs from the top of the array, but also introduces defects and oxygen-containing functional groups into the CNTs. We can thus produce composite CNT yarns with high tensile strengths up to 2.2 GPa and Young*s moduli of more than 200 GPa.


Towards full repair of defects in reduced graphene oxide films by two-step graphitization

Rub谷n Rozada, Juan I. Paredes (), Silvia Villar-Rodil, Amelia Mart赤nez-Alonso, and Juan M. D. Tasc車n

Instituto Nacional del Carb車n, INCAR-CSIC, Apartado 73, 33080 Oviedo, Spain

DOI 10.1007/s12274-013-0298-6

Nano Research 2013, 6(3): 216每233

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For the first time, full restoration of the carbon lattice in reduced graphene oxide sheets assembled into films is demonstrated, based on a carefully designed annealing procedure. The resulting films exhibit electrical conductivities as high as 577,000 S﹞m每1.


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